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Continuum approach to the numerical simulation of material failure in concrete

โœ Scribed by J. Oliver; A. E. Huespe; E. Samaniego; E. W. V. Chaves

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
534 KB
Volume
28
Category
Article
ISSN
0363-9061

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โœฆ Synopsis

Abstract

Some new aspects of the continuum strong discontinuity approach (CSDA) to model material failure in geomaterials are addressed. A new global algorithm, for tracking multiple crack lines/surfaces in 2D/3D cases is proposed. It is based on solving a simple heat conductionโ€like problem accompanying the standard mechanical algorithm. A viscous perturbation method on the crack surface is also proposed to remedy the instabilities caused by mutual interactions of multiple developing cracks. A simple procedure to compute the critical time step that ensures algorithmic uniqueness is then provided. Numerical simulations of twoโ€ and threeโ€dimensional problems displaying a multiโ€crack pattern are finally presented. Copyright ยฉ 2004 John Wiley & Sons, Ltd.

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